diff --git a/webrtc/multiparty-sendrecv/gst-rust/Cargo.lock b/webrtc/multiparty-sendrecv/gst-rust/Cargo.lock
index 053bacdf35..fb1183fdec 100644
--- a/webrtc/multiparty-sendrecv/gst-rust/Cargo.lock
+++ b/webrtc/multiparty-sendrecv/gst-rust/Cargo.lock
@@ -7,7 +7,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "async-native-tls"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "async-std 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -20,7 +20,7 @@ name = "async-std"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "async-task 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "async-task 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-channel 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-deque 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -29,34 +29,35 @@ dependencies = [
  "futures-timer 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kv-log-macro 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "once_cell 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project-lite 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-lite 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "async-task"
-version = "1.1.1"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "async-tungstenite"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "async-native-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "async-native-tls 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "async-std 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "tungstenite 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -65,6 +66,11 @@ name = "autocfg"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "base64"
 version = "0.11.0"
@@ -123,7 +129,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.48"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -289,9 +295,9 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -320,7 +326,7 @@ dependencies = [
  "futures-macro 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-sink 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-task 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-nested 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -337,17 +343,17 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.1.13"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glib"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -383,20 +389,22 @@ dependencies = [
 
 [[package]]
 name = "gstreamer"
-version = "0.15.0"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-channel 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glib-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gobject-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "muldiv 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-rational 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-rational 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "paste 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -405,10 +413,10 @@ name = "gstreamer-sdp"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "glib 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glib-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gobject-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "gstreamer 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gstreamer 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-sdp-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -441,10 +449,10 @@ name = "gstreamer-webrtc"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "glib 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glib-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gobject-sys 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "gstreamer 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gstreamer 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-sdp 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gstreamer-webrtc-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -502,7 +510,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -568,7 +576,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -652,34 +660,34 @@ dependencies = [
 
 [[package]]
 name = "num-integer"
-version = "0.1.41"
+version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-rational"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.10"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.11.1"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -688,7 +696,7 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.2.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -720,7 +728,7 @@ version = "0.9.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -741,9 +749,9 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -753,25 +761,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "pin-project"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pin-project-internal 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-internal 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.1.1"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -791,25 +799,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro-error"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro-error-attr 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-error-attr 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustversion 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "proc-macro-error-attr"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustversion 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn-mid 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -818,9 +826,9 @@ name = "proc-macro-hack"
 version = "0.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -830,7 +838,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -841,15 +849,15 @@ name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -870,7 +878,7 @@ name = "rand_core"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -907,9 +915,9 @@ name = "rustversion"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -973,14 +981,14 @@ name = "serde_derive"
 version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.44"
+version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -990,7 +998,7 @@ dependencies = [
 
 [[package]]
 name = "sha-1"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1011,31 +1019,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "structopt"
-version = "0.3.7"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt-derive 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
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- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1084,9 +1093,9 @@ name = "thiserror-impl"
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@@ -1145,7 +1154,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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@@ -1165,7 +1174,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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-"checksum proc-macro-error 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "53c98547ceaea14eeb26fcadf51dc70d01a2479a7839170eae133721105e4428"
-"checksum proc-macro-error-attr 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c2bf5d493cf5d3e296beccfd61794e445e830dfc8070a9c248ad3ee071392c6c"
+"checksum proc-macro-error 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1b79a464461615532fcc8a6ed8296fa66cc12350c18460ab3f4594a6cee0fcb6"
+"checksum proc-macro-error-attr 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "23832e5eae6bac56bbac190500eef1aaede63776b5cd131eaa4ee7fe120cd892"
 "checksum proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "ecd45702f76d6d3c75a80564378ae228a85f0b59d2f3ed43c91b4a69eb2ebfc5"
 "checksum proc-macro-nested 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"
-"checksum proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "0319972dcae462681daf4da1adeeaa066e3ebd29c69be96c6abb1259d2ee2bcc"
+"checksum proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3acb317c6ff86a4e579dfa00fc5e6cca91ecbb4e7eb2df0468805b674eb88548"
 "checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
-"checksum rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3ae1b169243eaf61759b8475a998f0a385e42042370f3a7dbaf35246eacc8412"
+"checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 "checksum rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03a2a90da8c7523f554344f921aa97283eadf6ac484a6d2a7d0212fa7f8d6853"
 "checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 "checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
@@ -1340,13 +1350,13 @@ dependencies = [
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
 "checksum serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
-"checksum serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)" = "48c575e0cc52bdd09b47f330f646cf59afc586e9c4e3ccd6fc1f625b8ea1dad7"
-"checksum sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "23962131a91661d643c98940b20fcaffe62d776a823247be80a48fcb8b6fce68"
+"checksum serde_json 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)" = "eab8f15f15d6c41a154c1b128a22f2dfabe350ef53c40953d84e36155c91192b"
+"checksum sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
-"checksum structopt 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "884ae79d6aad1e738f4a70dff314203fd498490a63ebc4d03ea83323c40b7b72"
-"checksum structopt-derive 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0a97f829a34a0a9d5b353a881025a23b8c9fd09d46be6045df6b22920dbd7a93"
-"checksum syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4ff033220a41d1a57d8125eab57bf5263783dfdcc18688b1dacc6ce9651ef8"
+"checksum structopt 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "df136b42d76b1fbea72e2ab3057343977b04b4a2e00836c3c7c0673829572713"
+"checksum structopt-derive 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd50a87d2f7b8958055f3e73a963d78feaccca3836767a9069844e34b5b03c0a"
+"checksum syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
 "checksum syn-mid 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd3937748a7eccff61ba5b90af1a20dbf610858923a9192ea0ecb0cb77db1d0"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
@@ -1355,14 +1365,14 @@ dependencies = [
 "checksum tungstenite 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8a0c2bd5aeb7dcd2bb32e472c8872759308495e5eccc942e929a513cd8d36110"
 "checksum typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6d2783fe2d6b8c1101136184eb41be8b1ad379e4657050b8aaff0c79ee7575f9"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
-"checksum unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b561e267b2326bb4cebfc0ef9e68355c7abe6c6f522aeac2f5bf95d56c59bdcf"
+"checksum unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 "checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 "checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
-"checksum url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "75b414f6c464c879d7f9babf951f23bc3743fb7313c081b2e6ca719067ea9d61"
+"checksum url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
 "checksum utf-8 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)" = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
 "checksum vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
-"checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
+"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
diff --git a/webrtc/multiparty-sendrecv/gst-rust/src/main.rs b/webrtc/multiparty-sendrecv/gst-rust/src/main.rs
index 4f25d26566..dfe80326a4 100644
--- a/webrtc/multiparty-sendrecv/gst-rust/src/main.rs
+++ b/webrtc/multiparty-sendrecv/gst-rust/src/main.rs
@@ -191,15 +191,9 @@ impl App {
             .get_by_name("audio-mixer")
             .expect("can't find audio-mixer");
 
+        // Create a stream for handling the GStreamer message asynchronously
         let bus = pipeline.get_bus().unwrap();
-
-        // Send our bus messages via a futures channel to be handled asynchronously
-        let (send_gst_msg_tx, send_gst_msg_rx) = mpsc::unbounded::<gst::Message>();
-        let send_gst_msg_tx = Mutex::new(send_gst_msg_tx);
-        bus.set_sync_handler(move |_, msg| {
-            let _ = send_gst_msg_tx.lock().unwrap().unbounded_send(msg.clone());
-            gst::BusSyncReply::Drop
-        });
+        let send_gst_msg_rx = gst::BusStream::new(&bus);
 
         // Channel for outgoing WebSocket messages from other threads
         let (send_ws_msg_tx, send_ws_msg_rx) = mpsc::unbounded::<WsMessage>();
diff --git a/webrtc/sendrecv/gst-rust/Cargo.lock b/webrtc/sendrecv/gst-rust/Cargo.lock
index 927c73c8c3..2eefc9ea3b 100644
--- a/webrtc/sendrecv/gst-rust/Cargo.lock
+++ b/webrtc/sendrecv/gst-rust/Cargo.lock
@@ -8,9 +8,9 @@ checksum = "7825f6833612eb2414095684fcf6c635becf3ce97fe48cf6421321e93bfbd53c"
 
 [[package]]
 name = "async-native-tls"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f073e25c972058b3a98e74bfbd2297ec0a4b2ed7b9c3f7b1e66d976601b98a8"
+checksum = "d40a615e861c981117e15c28c577daf9918cabd2e2d588a5e06811ae79c9da1a"
 dependencies = [
  "async-std",
  "native-tls",
@@ -44,18 +44,19 @@ dependencies = [
 
 [[package]]
 name = "async-task"
-version = "1.1.1"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d22dc86693d375d2733b536fd8914bea0fa93adf4b1e6bcbd9c7c500cb62d920"
+checksum = "a9f534e76ca33eaa82bc8da5adb1b9e94a16f6fa217b78e9b400094dbbf844f9"
 dependencies = [
- "crossbeam-utils",
+ "libc",
+ "winapi 0.3.8",
 ]
 
 [[package]]
 name = "async-tungstenite"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d35b7b512425d228d0366885b417ae3884930673ac1265764f1a8389dd2b00c4"
+checksum = "37250bc739b253cf2d861047a7bcaad1d46d1d027070b44dbeab9168b40cf407"
 dependencies = [
  "async-native-tls",
  "async-std",
@@ -71,6 +72,12 @@ version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
 
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
+
 [[package]]
 name = "base64"
 version = "0.11.0"
@@ -137,9 +144,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.48"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
+checksum = "95e28fa049fda1c330bcf9d723be7663a899c4679724b34c81e9f5a326aab8cd"
 
 [[package]]
 name = "cfg-if"
@@ -199,7 +206,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5064ebdbf05ce3cb95e45c8b086f72263f4166b29b97f6baff7ef7fe047b55ac"
 dependencies = [
- "autocfg",
+ "autocfg 0.1.7",
  "cfg-if",
  "crossbeam-utils",
  "lazy_static",
@@ -213,7 +220,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce446db02cdc3165b94ae73111e570793400d0794e46125cc4056c81cbb039f4"
 dependencies = [
- "autocfg",
+ "autocfg 0.1.7",
  "cfg-if",
  "lazy_static",
 ]
@@ -378,9 +385,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.1.13"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7db7ca94ed4cd01190ceee0d8a8052f08a247aa1b469a7f68c6a3b71afcf407"
+checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 dependencies = [
  "cfg-if",
  "libc",
@@ -389,9 +396,9 @@ dependencies = [
 
 [[package]]
 name = "glib"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "121c502fc6895e62d2ce084e677d3289ccbdd7f56edd4ac9a5ab8bd95d4a8670"
+checksum = "27bafffe3fc615449d5a87705f93f6fe4fcf749662b9d08cc9d5451f6c1b0f21"
 dependencies = [
  "bitflags",
  "futures-channel",
@@ -428,13 +435,15 @@ dependencies = [
 
 [[package]]
 name = "gstreamer"
-version = "0.15.0"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d9ea04f6e746e90d979eaf5b55a9125fd159e58959f203a2f3fbc4b2a93b77"
+checksum = "bbd828ab7aa022faec4248f3cf06891f6e02e7ca9271a5c0e5253eaf83b5259f"
 dependencies = [
  "bitflags",
  "cfg-if",
+ "futures-channel",
  "futures-core",
+ "futures-util",
  "glib",
  "glib-sys",
  "gobject-sys",
@@ -633,9 +642,9 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
+checksum = "3197e20c7edb283f87c071ddfc7a2cca8f8e0b888c242959846a6fce03c72223"
 
 [[package]]
 name = "memoffset"
@@ -725,39 +734,39 @@ dependencies = [
 
 [[package]]
 name = "num-integer"
-version = "0.1.41"
+version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
+checksum = "3f6ea62e9d81a77cd3ee9a2a5b9b609447857f3d358704331e4ef39eb247fcba"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "num-traits",
 ]
 
 [[package]]
 name = "num-rational"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2885278d5fe2adc2f75ced642d52d879bffaceb5a2e0b1d4309ffdfb239b454"
+checksum = "da4dc79f9e6c81bef96148c8f6b8e72ad4541caa4a24373e900a36da07de03a3"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
  "num-integer",
  "num-traits",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.10"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4c81ffc11c212fa327657cb19dd85eb7419e163b5b076bede2bdb5c974c07e4"
+checksum = "c62be47e61d1842b9170f0fdeec8eba98e60e90e5446449a0545e5152acd7096"
 dependencies = [
- "autocfg",
+ "autocfg 1.0.0",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.11.1"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76dac5ed2a876980778b8b85f75a71b6cbf0db0b1232ee12f826bccb00d09d72"
+checksum = "46203554f085ff89c235cd12f7075f3233af9b11ed7c9e16dfe2560d03313ce6"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -765,9 +774,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.2.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "891f486f630e5c5a4916c7e16c4b24a53e78c860b646e9f8e005e4f16847bfed"
+checksum = "b1c601810575c99596d4afc46f78a678c80105117c379eb3650cf99b8a21ce5b"
 
 [[package]]
 name = "opaque-debug"
@@ -801,7 +810,7 @@ version = "0.9.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "465d16ae7fc0e313318f7de5cecf57b2fbe7511fd213978b457e1c96ff46736f"
 dependencies = [
- "autocfg",
+ "autocfg 0.1.7",
  "cc",
  "libc",
  "pkg-config",
@@ -838,18 +847,18 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "pin-project"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94b90146c7216e4cb534069fb91366de4ea0ea353105ee45ed297e2d1619e469"
+checksum = "75fca1c4ff21f60ca2d37b80d72b63dab823a9d19d3cda3a81d18bc03f0ba8c5"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44ca92f893f0656d3cba8158dd0f2b99b94de256a4a54e870bd6922fcc6c8355"
+checksum = "6544cd4e4ecace61075a6ec78074beeef98d58aa9a3d07d053d993b2946a90d6"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -858,9 +867,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.1.1"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0af6cbca0e6e3ce8692ee19fb8d734b641899e07b68eb73e9bbbd32f1703991"
+checksum = "237844750cfbb86f67afe27eee600dfbbcb6188d734139b534cbfbf4f96792ae"
 
 [[package]]
 name = "pin-utils"
@@ -882,9 +891,9 @@ checksum = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 
 [[package]]
 name = "proc-macro-error"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53c98547ceaea14eeb26fcadf51dc70d01a2479a7839170eae133721105e4428"
+checksum = "1b79a464461615532fcc8a6ed8296fa66cc12350c18460ab3f4594a6cee0fcb6"
 dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
@@ -895,9 +904,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro-error-attr"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2bf5d493cf5d3e296beccfd61794e445e830dfc8070a9c248ad3ee071392c6c"
+checksum = "23832e5eae6bac56bbac190500eef1aaede63776b5cd131eaa4ee7fe120cd892"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -925,9 +934,9 @@ checksum = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0319972dcae462681daf4da1adeeaa066e3ebd29c69be96c6abb1259d2ee2bcc"
+checksum = "3acb317c6ff86a4e579dfa00fc5e6cca91ecbb4e7eb2df0468805b674eb88548"
 dependencies = [
  "unicode-xid",
 ]
@@ -943,9 +952,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ae1b169243eaf61759b8475a998f0a385e42042370f3a7dbaf35246eacc8412"
+checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
  "getrandom",
  "libc",
@@ -1094,9 +1103,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.44"
+version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48c575e0cc52bdd09b47f330f646cf59afc586e9c4e3ccd6fc1f625b8ea1dad7"
+checksum = "eab8f15f15d6c41a154c1b128a22f2dfabe350ef53c40953d84e36155c91192b"
 dependencies = [
  "itoa",
  "ryu",
@@ -1105,9 +1114,9 @@ dependencies = [
 
 [[package]]
 name = "sha-1"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23962131a91661d643c98940b20fcaffe62d776a823247be80a48fcb8b6fce68"
+checksum = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
 dependencies = [
  "block-buffer",
  "digest",
@@ -1129,19 +1138,20 @@ checksum = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
 
 [[package]]
 name = "structopt"
-version = "0.3.7"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "884ae79d6aad1e738f4a70dff314203fd498490a63ebc4d03ea83323c40b7b72"
+checksum = "df136b42d76b1fbea72e2ab3057343977b04b4a2e00836c3c7c0673829572713"
 dependencies = [
  "clap",
+ "lazy_static",
  "structopt-derive",
 ]
 
 [[package]]
 name = "structopt-derive"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a97f829a34a0a9d5b353a881025a23b8c9fd09d46be6045df6b22920dbd7a93"
+checksum = "fd50a87d2f7b8958055f3e73a963d78feaccca3836767a9069844e34b5b03c0a"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -1152,9 +1162,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.13"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e4ff033220a41d1a57d8125eab57bf5263783dfdcc18688b1dacc6ce9651ef8"
+checksum = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1251,9 +1261,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.11"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b561e267b2326bb4cebfc0ef9e68355c7abe6c6f522aeac2f5bf95d56c59bdcf"
+checksum = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 dependencies = [
  "smallvec",
 ]
@@ -1278,9 +1288,9 @@ checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
 [[package]]
 name = "url"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75b414f6c464c879d7f9babf951f23bc3743fb7313c081b2e6ca719067ea9d61"
+checksum = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
 dependencies = [
  "idna",
  "matches",
@@ -1301,9 +1311,9 @@ checksum = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
 
 [[package]]
 name = "wasi"
-version = "0.7.0"
+version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
 [[package]]
 name = "webrtc-app"
@@ -1313,6 +1323,7 @@ dependencies = [
  "async-std",
  "async-tungstenite",
  "futures",
+ "glib",
  "gstreamer",
  "gstreamer-sdp",
  "gstreamer-webrtc",
diff --git a/webrtc/sendrecv/gst-rust/src/main.rs b/webrtc/sendrecv/gst-rust/src/main.rs
index 2072def02c..c35cce48ff 100644
--- a/webrtc/sendrecv/gst-rust/src/main.rs
+++ b/webrtc/sendrecv/gst-rust/src/main.rs
@@ -133,15 +133,9 @@ impl App {
         webrtcbin.set_property_from_str("stun-server", STUN_SERVER);
         webrtcbin.set_property_from_str("bundle-policy", "max-bundle");
 
+        // Create a stream for handling the GStreamer message asynchronously
         let bus = pipeline.get_bus().unwrap();
-
-        // Send our bus messages via a futures channel to be handled asynchronously
-        let (send_gst_msg_tx, send_gst_msg_rx) = mpsc::unbounded::<gst::Message>();
-        let send_gst_msg_tx = Mutex::new(send_gst_msg_tx);
-        bus.set_sync_handler(move |_, msg| {
-            let _ = send_gst_msg_tx.lock().unwrap().unbounded_send(msg.clone());
-            gst::BusSyncReply::Drop
-        });
+        let send_gst_msg_rx = gst::BusStream::new(&bus);
 
         // Channel for outgoing WebSocket messages from other threads
         let (send_ws_msg_tx, send_ws_msg_rx) = mpsc::unbounded::<WsMessage>();